POWDER DIFFRACTOMETRY ACCESSORIES YOUR PARTNER IN X-RAY DIFFRACTION STOE & Cie GmbH WWW.STOE.COM
POWDER DIFFRACTOMETRY TRANSMISSION/DEBYE-SCHERRER TRANSMISSION SAMPLE HOLDER Quick overview measurements as well as Rietveld quality data collection Polymer samples (fibres or foils) Very small sample amounts As very thin films of sample can be prepared on STOE s zero scattering foils, this technique is preferable for highly absorbing materials when measured in transmission mode Easy and clean preparation of samples on zero scattering foils Convenient loading of sample inserts with different inner diameters Sample displacement and thickness can be corrected by a micrometer screw Sample rotation in a high precision ball-bearing guarantees minimal reflex broadening and low noise CAPILLARY SAMPLE HOLDER Minimising preferred orientation leading to accurate intensities for structure solution and Rietveld refinement Obtaining narrow FWHM and symmetric profiles Suitable for air sensitive and hygroscopic materials in sealed capillaries Also used with low temperature attachments Glass capillaries between 0.1 and 2.0 mm diameter A precise goniometer head, aligned by video CCD control, guarantees coincidence of capillary and diffractometer axis / COMBI / COMBI
PERMANENT ALIGNED CAPILLARY SAMPLE HOLDER Qualitative and quantitative phase analysis Fast data acquisition in combination with the IP-PSD Auto-alignment due to three guide bushes Easiest capillary exchange Sample rotation for excellent statistics Height adjustment for an optimal sample position in the X-ray beam GANDOLFI SAMPLE HOLDER Accurate investigations of samples with preferred orientation Precise goniometer head 45 phi axis Permanent rotation / COMBI Capillaries between 0.1 and 1.1 mm / COMBI
POWDER DIFFRACTOMETRY REFLECTION REFLECTION SAMPLE HOLDER The reflection mode has to be applied in all cases the transmission or the capillary techniques cannot be used, e.g. for measurements of bulk materials, liquids, Langmuir-Blodgett films or thin layers. Precise height adjustment of the sample using a reference blade Zero background sample inserts with or without cavity REFLECTOMETRY SAMPLE HOLDER As misalignment of the sample strongly affects the quality of the results in reflectometry experiments, STOE s Reflectometry Sample Holder has been designed for accurate alignment for e.g.: Reflectometry experiments to determine film thickness, composition and interface roughness Standard powder diffractometry Grazing incidence experiments for phase analysis of thin films Reference blade for reproducible height adjustment Micrometer-controlled sample alignment with digital sample position display Reference blade serves as collimator in reflectometry measurements Manual tilt correction possible Sample spinning for wide-angle X-ray diffraction
MULTI-PURPOSE ANALYZER STAGE Determination of crystal axis orientation of large single crystals Alignment of the goniometer head carrying a large single crystal for grinding and cutting Automatic XRPD-analysis of round or squared sample arrays in combinatorial analysis Standard ACA goniometer head mount Motorized and PC-controlled X and Y translation +/- 10 mm with a resolution of 5 Μm Motorized and PC-controlled rotation with a resolution of 0.0072 Manual micrometer-controlled Z translation (0 50 mm) for the alignment of a crystal surface or a sample array to the reference blade
POWDER DIFFRACTOMETRY HIGH TROUGHPUT TRANSMISSION AND REFLECTION SAMPLE CHANGER The sample changers for transmission or reflec - tion can be set up on the diffractometes as pre-aligned additional units and are controlled by the software package WinX POW. The user benefits from fast sample throughput, proven reliability and high quality data sets. Each file is carrying its unique identifier accessible through the flexible WinX POW file management system. The STOE sample changers are as easy to exchange as the other STOE sample holders. TRANSMISSION SAMPLE CHANGER Capacity of up to 30 samples Easy load/unload function Controlled by STOE s Software Package WinX POW REFLECTION SAMPLE CHANGER Capacity of up to 12 samples Easy height adjustment for bulk samples with different thickness (up to 20 mm) Controlled by STOE s Software package WinX POW
CAPILLARIES SAMPLE CHANGER The sample changer for capillaries has been developed for automated measurements of up to 10 capillaries in Debye-Scherrer mode. The capillaries have only to be inserted in the guide bushes, therefore no alignment, e.g. of a goniometer head, is necessary. The position of the capillaries in the X-ray beam and their exposure time are menu-driven by STOE s control and evaluation software. A manual height adjustment to optimize the amount of sample material in the beam is, of course, included. Capacity of up to 10 capillaries Additional height adjustment for optimized sample position in the beam HIGH THROUGHPUT AND COMBINA- TORIAL ANALYSIS SAMPLE CHANGER Fast measurements even of small amounts of sample material Measurements of liquids Whole area of combinatorial and high throughput analysis Variable X, Y grid Easily exchangable inserts for up to 96 samples Height adjustment by micrometer screw Menu driven position control > STOE STADI P / COMBI No capillary alignment necessary
POWDER DIFFRACTOMETRY HIGH TEMPERATURE ATTACHMENTS STOE Furnace HIGHEST ACCURACY FOR CAPILLARIES The STOE STADI P and STADI MP is the ideal equipment for the observation and evaluation of phase transitions in non-ambient environments. Therefore STOE has developed the capillary furnace series for powder investigations at high temperatures for three different temperature ranges: The basic version from RT to 1000 C The extended T version from RT to 1500 C The furnace with low temperature option for a range from 50 to 1000 C Basic version mounted on a fixed stage with STOE s large IP-PSD, video CCD and tube housing. All STOE furnaces are delivered with a referring temperature controller in a 19 rack containing power supply, flow meter for the cooling water control and interface to the PC. All three versions provide sample spinning to avoid effects from preferred orientation. The tempera - ture programs are easy to being set-up and executed. The temperature stability in the whole range is below +/- 1 C. The STOE furnaces can be mounted on every STADI P and STADI MP diffractometer. Heating elements are available for capillaries with diameters from 0.2 to 1.0 mm. TECHNICAL SPECIFICATIONS BASIC VERSION EXTENDED VERSION LOW-TEMPERATURE VERSION Temperature range RT 1000 C RT 1500 C -50 C 1000 C Thermo couple Ni/CrNi Pt/PtRh Ni/CrNi Heating power 1000 W 1300 W 1300 W Max. heating rate 50 /min 50 /min 50 /min 2Θ range 0 90 0 90 0 90 Sample holder Capillary Capillary + Pt-/Ir-Wire Capillary STOE & Cie GmbH Hilpertstrasse 10 64295 Darmstadt Germany P +49 (0) 6151 98870 F +49 (0) 6151 988788 info@stoe.com WWW.STOE.COM